Screen Shot on High DPI Machines

Question

I am using following code to capture desktop screenshot.it works fine on normal DPI machines. But with machines that have DPI setting higher then normal, part of the screen is not shown in the capture image.

After little research i came to know that i need to add below settings in application manifest file.

followed steps specified in this link configure-an-app-to-run-correctly-on-a-machine-with-a-high-dpi-setting

But still problem persists. Capture screen not proper on High-DPI Machines.

Please guide me.What else need to done to overcome this.

<asmv3:application xmlns="urn:schemas-microsoft-com:asm.v3">
    <asmv3:windowsSettings>
      <dpiAwareness xmlns="http://schemas.microsoft.com/SMI/2016/WindowsSettings">PerMonitorV2</dpiAwareness>
      <dpiAware xmlns="http://schemas.microsoft.com/SMI/2005/WindowsSettings">true</dpiAware>
    </asmv3:windowsSettings>
  </asmv3:application>



static Bitmap CaptureDesktop()
    {
        SIZE size;
        Bitmap printscreen = null;

        size.cx = Win32Stuff.GetSystemMetrics
                         (Win32Stuff.SM_CXSCREEN);

        size.cy = Win32Stuff.GetSystemMetrics
                  (Win32Stuff.SM_CYSCREEN);

        int width = size.cx; int height = size.cy;

        IntPtr hWnd = Win32Stuff.GetDesktopWindow();
        IntPtr hDC = Win32Stuff.GetDC(hWnd);
        if (hDC != IntPtr.Zero)
        {
            IntPtr hMemDC = GDIStuff.CreateCompatibleDC(hDC);
            if (hMemDC != IntPtr.Zero)
            {
                IntPtr m_HBitmap = GDIStuff.CreateCompatibleBitmap(hDC, width, height);
                if (m_HBitmap != IntPtr.Zero)
                {
                    IntPtr hOld = (IntPtr)GDIStuff.SelectObject(hMemDC, m_HBitmap);
                    GDIStuff.BitBlt(hMemDC, 0, 0, width, height, hDC, 0, 0, GDIStuff.SRCCOPY);
                    GDIStuff.SelectObject(hMemDC, hOld);
                    GDIStuff.DeleteDC(hMemDC);
                    printscreen = System.Drawing.Image.FromHbitmap(m_HBitmap);
                    GDIStuff.DeleteObject(m_HBitmap);
                }
            }
        }
        Win32Stuff.ReleaseDC(hWnd, hDC);

        return printscreen;
    }